True to his longstanding bias against grand unifying theories, Hacking chooses to pursue these questions by focusing on a specific case of memory-thinking: the history of multiple personality. His excavation of the contemporary terrain leads him, however, to the surprisingly grand conclusion that the various sciences of memory—including neurological studies of localization, experimental studies of recall, and studies in the psychodynamics of memory—all emerged in connection with attempts to “scientize the soul,” as a result of which spiritual battles have been (...) recast as scientific controversies “where we suppose there is such a thing as knowledge to be had”. (shrink)